Wheel retracting and extending device for amphibious vehicle

Abstract

The invention belongs to a wheel retracting and extending device for an amphibious vehicle. The wheel retracting and extending device comprises a motor (11), and a shaft of the motor (11) is connected with a worm reduction box (9). The wheel retracting and extending device is characterized in that a worm of the worm reduction box (9) is hinged to the centers of rocker arms (12); two ends of the rocker arms (12) are respectively hinged to one end of each of synchronous connecting rods (10); the other ends of the synchronous connecting rods (10) are hinged to one end of each of inner side rocker arms (8); the other ends of the inner side rocker arms (8) are hinged to one end of each of upper connecting rods (6); the other ends of the upper connecting rods (6) are hinged to wheel rim rocker arms (5); the other ends of the wheel rim rocker arms (5) are hinged to one end of each of lower connecting rods (3); the other ends of the lower connecting rods (3) are hinged to the other ends of the inner side rocker arms (8); and lower hinge points A on the inner sides of four-connecting-rod mechanisms are hinged to a ship body (13). The wheel retracting and extending device disclosed by the invention is compact in structure, large in wheel retracting range, smooth in traveling, long in service life, simple in structure, easy to process and low in cost.

Description

technical field [0001] The invention belongs to components of an amphibious vehicle, in particular to a retractable wheel device for an amphibious vehicle. Background technique [0002] Water navigation speed is an important indicator of amphibious vehicles. Compared with boats, amphibious vehicles have a complex structure, heavy weight and deep water draft; the streamlined body is damaged by wheels and wheel suspensions; resulting in high navigation resistance. Therefore, most amphibious vehicles adopt a retractable wheel structure, and when driving in water, the wheels are retracted above the water surface to reduce resistance. To achieve the purpose of increasing the speed of the vehicle. And the quality of retractable wheel device design directly affects the size of land driving performance and water navigation resistance. [0003] At present, relatively mature amphibious vehicle products include Humingda, Gibbs Humdinga and Gibbs Quadski of the British Gibbs Company,...

AI Technical Summary

Problems solved by technology

Domestic research and development of amphibious vehicles started relatively late, and there is a big gap compared with foreign countries

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